I can do the crossing eye thing, sort of. Just not...like...in.
I can only do it out; such s, one eye is looking onto the side and te other eye is in the middle looking forward. I can do it both ways, just not looking in. XD

I'm capable of doing this cuz I have lazy eyes and I'm sort of play around with my eye muscles so I can look straight and lazy eyed XD it;s pretty freaky for some ppl/